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Table 3 Nutritional qualitya of the shopping cart across demographic and economic characteristics by allocated front-of-pack nutrition label (N = 2194)

From: Impact of front-of-pack nutrition labels on consumer purchasing intentions: a randomized experiment in low- and middle-income Mexican adults

 GDAMTLWL
Mean (SD)Mean (SD)Mean (SD)
Household monthly income (MXN pesos), mean (SD)
  < $26991.9 (3.2)1.2 (3.3)1.0 (3.4)
 $2700-67991.7 (3.0)1.0 (3.1)1.3 (3.1)
 $6800-11,5991.2 (2.7)0.7 (3.0)0.8 (3.3)
 $11,600-34,990.8 (2.7)0.0 (2.6)0.4 (3.0)
  > $35,000−0.2 (2.4)0.6 (2.6)−0.3 (2.4)
p-trend0.0000.0020.003
Education level, n (%)
 Secondary school and lower2.1 (3.0)1.7 (3.3)1.8 (3.6)
 High-school1.5 (2.9)0.7 (2.9)1.1 (3.3)
 Undergraduate1.0 (2.8)0.5 (2.9)0.4 (2.9)
 Graduate0.9 (2.8)−0.2 (2.7)−0.3 (2.5)a
p-trend0.0000.0000.000
Interest in health, n (%)
 Not interested or a little interested2.3 (3.0)1.7 (3.1)1.8 (2.8)
 Very interested1.1 (2.8)0.5 (3.0)0.6 (3.2)
p-value0.0000.0000.000
Self-reported nutritional knowledge, n (%)
 Not knowledgeable2.3 (3.1)1.9 (3.5)1.9 (3.1)
 A little knowledgeable1.4 (2.7)1.0 (2.8)0.8 (2.7)
 Somewhat and very knowledgeable0.7 (2.9)−0.1 (2.7)0.3 (3.5)
p-trend0.0000.0000.000
  1. a The nutritional quality of the shopping cart was evaluated using the NPSC model
  2. Bolds indicate significant differences (p < 0.05) with GDA for a given characteristic level
  3. P-values indicate differences or linear trends across levels of a given characteristic for the corresponding label
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